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Uptake, translocation and distribution of cyantraniliprole in rice planting system

文献类型： 外文期刊

作者： Zhang, Changpeng 1 ; Fang, Nan 1 ; Li, Yanjie 1 ; Wang, Xiangyun 1 ; He, Hongmei 1 ; Jiang, Jinhua 1 ; Tang, Tao 1 ; Xu, Zhenlan 1 ; Zhao, Xueping 1 ; Li, Yuanbo 2 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, Rural Affairs Key Lab Pesticide Residue Detect, Minist Agr, Hangzhou 310021, Peoples R China

2.Chinese Acad Agr Sci, Inst Plant Protect, Beijing 100193, Peoples R China

关键词： Cyantraniliprole; Rice; Uptake; Translocation; Apoplastic

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：14.224； 五年影响因子：12.984 ）

ISSN： 0304-3894

年卷期： 2022 年 436 卷

页码：

收录情况： SCI

摘要： While cyantraniliprole has been frequently used in rice fields, knowledge of the uptake, translocation and distribution of cyantraniliprole in rice planting systems is still largely unexplored. Plant uptake is a crucial factor in determining how cyantraniliprole moves through the food chain. Understanding the uptake, translocation and distribution of cyantraniliprole in rice planting system is essential to predicting its accumulation in rice and potential human exposure. Herein, the uptake process of cyantraniliprole in a hydroponic-rice system was systematically investigated. Results showed that cyantraniliprole was easily absorbed by rice roots via a passive diffusion process through the apoplastic pathway and then translocated upward through the xylem, but its acropetal translocation was limited. Cyantraniliprole in shoots can also be downward translocated through the phloem, although only to a limited extent, showing rice plants' weak phloem movement capacity. Furthermore, cyantraniliprole had a short half-life in sediment-water system and dissipated faster in anaerobic than aerobic conditions. At the equilibrium stage of a sediment-water system, cyantraniliprole is preferentially partitioned to the solid phase. Our study provides a systematic insight into the uptake, translocation and distribution of cyantraniliprole in the rice planting system, which is very helpful for better field cyantraniliprole application and environmental risk assessment.

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[1]Uptake, translocation and distribution of cyantraniliprole in rice planting system. Zhang, Changpeng,Fang, Nan,Li, Yanjie,Wang, Xiangyun,He, Hongmei,Jiang, Jinhua,Tang, Tao,Xu, Zhenlan,Zhao, Xueping,Li, Yuanbo. 2022

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